Drill bit sharpener



FIG. 1 is a perspective view of a drill bit sharpener embodying my new design as seen from the front, right side;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a drill bit sharpener, as shown and described. 